There are three types of database architectures - centralized, distributed and m
ID: 3916623 • Letter: T
Question
There are three types of database architectures - centralized, distributed and modular
True or False
A centralized database is where the database is completely contained at one central location (server) and all users access that one location
True or False
A distributed database requires multiple instasnces of a database management system running on each site.
True or False
Periodic data are always physically altered to reflect current data
True or False
Status data is a before and after image - before a transaction and after the transaction against the data
True or False
Explanation / Answer
1.FALSE
-the two architectures are centralized,distributed
2.TRUE
-in centralized architecture , all the clients have one server which serves the clients
3.TRUE
-in distributive system, every node acts as both server and client,having instance of database running on every node
4.FALSE
- we don't need to physically alter periodic data
5.TRUE